WO2008092456A3 - A rotational magnetic bearing with permanent magnets, preferably for a wind turbine - Google Patents

A rotational magnetic bearing with permanent magnets, preferably for a wind turbine Download PDF

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Publication number
WO2008092456A3
WO2008092456A3 PCT/DK2008/000046 DK2008000046W WO2008092456A3 WO 2008092456 A3 WO2008092456 A3 WO 2008092456A3 DK 2008000046 W DK2008000046 W DK 2008000046W WO 2008092456 A3 WO2008092456 A3 WO 2008092456A3
Authority
WO
WIPO (PCT)
Prior art keywords
rotational
wind turbine
permanent magnets
magnetic bearing
rotational magnetic
Prior art date
Application number
PCT/DK2008/000046
Other languages
French (fr)
Other versions
WO2008092456A2 (en
Inventor
Kristoffer Zeuthen
Steffen Zeuthen
Original Assignee
Kristoffer Zeuthen
Steffen Zeuthen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kristoffer Zeuthen, Steffen Zeuthen filed Critical Kristoffer Zeuthen
Priority to US12/449,317 priority Critical patent/US20110062716A1/en
Priority to AU2008210104A priority patent/AU2008210104A1/en
Priority to EP08700917A priority patent/EP2129926A2/en
Priority to JP2009547531A priority patent/JP2010518297A/en
Publication of WO2008092456A2 publication Critical patent/WO2008092456A2/en
Publication of WO2008092456A3 publication Critical patent/WO2008092456A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/0408—Passive magnetic bearings
    • F16C32/0423—Passive magnetic bearings with permanent magnets on both parts repelling each other
    • F16C32/0429—Passive magnetic bearings with permanent magnets on both parts repelling each other for both radial and axial load, e.g. conical magnets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  the axis being vertical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • F05B2220/7068—Application in combination with an electrical generator equipped with permanent magnets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/211—Rotors for wind turbines with vertical axis
    • F05B2240/212—Rotors for wind turbines with vertical axis of the Darrieus type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/10—Application independent of particular apparatuses related to size
    • F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/30—Application independent of particular apparatuses related to direction with respect to gravity
    • F16C2300/34—Vertical, e.g. bearings for supporting a vertical shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/31—Wind motors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0231—Magnetic circuits with PM for power or force generation
    • H01F7/0236—Magnetic suspension or levitation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Wind Motors (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

An apparatus (1) for rotational motion about a rotational axis (14) of a first member (2) relative to a second member (3), the first member having an outer surface being rotational symmetric about the rotational axis, and the second member having a corresponding rotational symmetric cavity with an inner surface accommodating at least part of the first member with an interspace between the outer surface of the first member and the inner surface of the second member. A repulsive magnetic field (4) between the first and the second member prevents contact between the outer surface of the first member and the inner surface of the second member. This magnetic field is achieved by a plurality of permanent dipole magnets (6, 13) arranged in the first member and in the second member with identical polarity (7) directed towards the interspace between the first and the second member. By using a plurality of magnetic dipoles an arbitrary shape can be provided with a surface having only north or south poles of magnets. The inventions is especially suited for rotational support of Darrieus-type wind turbines (20).
PCT/DK2008/000046 2007-02-01 2008-02-01 A rotational magnetic bearing with permanent magnets, preferably for a wind turbine WO2008092456A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US12/449,317 US20110062716A1 (en) 2007-02-01 2008-02-01 Rotation magnetic bearing with permanent magnets, preferably for a wind turbine
AU2008210104A AU2008210104A1 (en) 2007-02-01 2008-02-01 A rotational magnetic bearing with permanent magnets, preferably for a wind turbine
EP08700917A EP2129926A2 (en) 2007-02-01 2008-02-01 A rotational magnetic bearing with permanent magnets, preferably for a wind turbine
JP2009547531A JP2010518297A (en) 2007-02-01 2008-02-01 Magnetic bearing for rotation with permanent magnet suitable for wind turbine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200700171 2007-02-01
DK200700171A DK176831B1 (en) 2007-02-01 2007-02-01 Deep water offshore darrieus wind turbine with multifunctional joint

Publications (2)

Publication Number Publication Date
WO2008092456A2 WO2008092456A2 (en) 2008-08-07
WO2008092456A3 true WO2008092456A3 (en) 2009-01-22

Family

ID=39672156

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2008/000046 WO2008092456A2 (en) 2007-02-01 2008-02-01 A rotational magnetic bearing with permanent magnets, preferably for a wind turbine

Country Status (7)

Country Link
US (1) US20110062716A1 (en)
EP (1) EP2129926A2 (en)
JP (1) JP2010518297A (en)
CN (1) CN101636597A (en)
AU (1) AU2008210104A1 (en)
DK (1) DK176831B1 (en)
WO (1) WO2008092456A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101943107A (en) * 2009-07-10 2011-01-12 王忠玉 Hemispherical magnetic suspension bearing of huge magnetic suspension vertical shaft diagonal windmill
ITMI20101033A1 (en) * 2010-06-09 2011-12-10 Alessandro Marracino SUSPENSION SYSTEM OF A VERTICAL WIND POWER GENERATOR
US8421263B2 (en) * 2010-10-27 2013-04-16 Florida Turbine Technologies, Inc. Floating vertical axis wind turbine
ITAV20100008A1 (en) * 2010-12-14 2011-03-15 Mario Montagna UNIVERSAL WIND GENERATOR
NL2010970C2 (en) * 2013-06-14 2014-12-17 Penta Robotics Patents B V MAGNETIC GLOBE HINGE AND ROBOT EQUIPPED WITH THE GLOBE HINGE.
CN103913153B (en) * 2014-04-30 2016-06-01 国家电网公司 Automatic adjusting horizontal laser measuring apparatus
US20160097373A1 (en) * 2014-10-07 2016-04-07 Vern Baumgardner Magnetic bearing systems
US9166458B1 (en) 2015-03-09 2015-10-20 Gordon Charles Burns, III Pump/generator over-unity apparatus and method
US20170204905A1 (en) * 2016-01-19 2017-07-20 Paranetics, Inc. Methods and apparatus for generating magnetic fields
JP2022520225A (en) 2019-02-14 2022-03-29 パラネティックス，インク． Methods and equipment for magnetic propulsion systems
CN113102929B (en) * 2021-06-15 2021-09-21 莱州市得利安数控机械有限公司 Steel pipe cutting and welding integrated machine

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB961725A (en) * 1959-11-09 1964-06-24 Leopold Rovner Monopolar magnetic structure
BE894586A (en) * 1981-10-03 1983-01-31 Nikolic Branimir MAGNETIC SUSPENSION DEVICE FOR A SHAFT OR AXLE
JPS60252820A (en) * 1984-05-29 1985-12-13 Toshiba Corp Journal bearing device
DE3638129A1 (en) * 1986-11-08 1988-05-11 Licentia Gmbh Large diameter turbogenerator for generating electrical energy at high power
EP0523002A1 (en) * 1991-07-11 1993-01-13 LAUBE, Hans-Jürgen Compound magnet comprising several individual magnets and a permanent magnetic bearing with a compound magnet comprising several individual magnets
CA2190298A1 (en) * 1996-11-14 1998-05-14 Go Simon Sunatori Magnetically levitated axleless wheel system
DE29922073U1 (en) * 1999-12-15 2000-03-23 Merlaku Kastriot Non-contact magnetic bearings
JP2004270673A (en) * 2003-03-06 2004-09-30 Akio Kikuchi Non-tareweight windmill
CN1760560A (en) * 2005-09-09 2006-04-19 河北农业大学 Radial thrust bi-directional magnetic suspension bearing

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664596A (en) * 1979-12-28 1987-05-12 Indal Technologies Inc. Vertical axis wind turbine and components therefor
US5470208A (en) * 1990-10-05 1995-11-28 Kletschka; Harold D. Fluid pump with magnetically levitated impeller
US5506459A (en) * 1995-09-15 1996-04-09 Ritts; Gary Magnetically balanced spinning apparatus
KR100330707B1 (en) * 2000-03-29 2002-04-03 이형도 Non-contact driving motor
US20070090706A1 (en) * 2005-10-20 2007-04-26 Davis Glenn R Frictionless suspension structure
US7462950B2 (en) * 2007-01-19 2008-12-09 Suey-Yueh Hu Magnetic levitation weight reduction structure for a vertical wind turbine generator
WO2008141297A1 (en) * 2007-05-10 2008-11-20 Viasat, Inc. Spherical motor positioning

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB961725A (en) * 1959-11-09 1964-06-24 Leopold Rovner Monopolar magnetic structure
BE894586A (en) * 1981-10-03 1983-01-31 Nikolic Branimir MAGNETIC SUSPENSION DEVICE FOR A SHAFT OR AXLE
JPS60252820A (en) * 1984-05-29 1985-12-13 Toshiba Corp Journal bearing device
DE3638129A1 (en) * 1986-11-08 1988-05-11 Licentia Gmbh Large diameter turbogenerator for generating electrical energy at high power
EP0523002A1 (en) * 1991-07-11 1993-01-13 LAUBE, Hans-Jürgen Compound magnet comprising several individual magnets and a permanent magnetic bearing with a compound magnet comprising several individual magnets
CA2190298A1 (en) * 1996-11-14 1998-05-14 Go Simon Sunatori Magnetically levitated axleless wheel system
DE29922073U1 (en) * 1999-12-15 2000-03-23 Merlaku Kastriot Non-contact magnetic bearings
JP2004270673A (en) * 2003-03-06 2004-09-30 Akio Kikuchi Non-tareweight windmill
CN1760560A (en) * 2005-09-09 2006-04-19 河北农业大学 Radial thrust bi-directional magnetic suspension bearing

Also Published As

Publication number Publication date
DK176831B1 (en) 2009-11-16
EP2129926A2 (en) 2009-12-09
JP2010518297A (en) 2010-05-27
WO2008092456A2 (en) 2008-08-07
US20110062716A1 (en) 2011-03-17
AU2008210104A1 (en) 2008-08-07
CN101636597A (en) 2010-01-27

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